Computer Science Module: Network Security

Unique numbers that identify specific services on a computer.

Specific port numbers used for Transmission Control Protocol (TCP) services.

Monitoring for suspicious activity on a network using known patterns.

Trying common passwords to guess a user's password.

Overloading a network service to make it unusable.

Intercepting and examining network traffic.

Manipulating people to gain access to information or systems.

Secure version of HTTP, using encryption.

Measures to protect network resources and data from unauthorized access, use, disclosure, disruption, modification, or destruction.

A security system that controls incoming and outgoing network traffic based on predetermined rules, acting as a gatekeeper.

A type of firewall that inspects network packets and filters them based on predefined rules.

An attack that floods a network or server with traffic, making it unavailable to legitimate users.

An attack that manipulates TCP packets to gain unauthorized access or disrupt network services.

Endpoints in a computer operating system for communication.

Unique numbers assigned to specific services on a computer, like a web server or email service, allowing communication with them.

They are reserved by convention to identify common services on a network, making communication easier and standardized.

Every port belongs to a specific IP address, which identifies a particular computer on a network.

A port used for Transmission Control Protocol (TCP), which ensures reliable data delivery.

A port used for User Datagram Protocol (UDP), which offers fast but less reliable data transmission.

A cyberattack that tries to guess a password by trying common words and phrases from a list.

It overloads a network or server with excessive traffic, preventing legitimate users from accessing services.

Intercepting and reading network traffic, potentially revealing sensitive information.

Manipulating people to gain access to sensitive information or systems by exploiting trust and deception.

Secure Sockets Layer (SSL) and its successor, Transport Layer Security (TLS), are protocols that encrypt data transfer for secure communication over the internet.

Protecting vital information while still allowing needed access. Examples include safeguarding trade secrets, medical records, and personal data, as well as ensuring reliable access to resources.

A security system that acts like a gatekeeper, controlling incoming and outgoing network traffic based on pre-defined rules.

Firewalls filter network packets, passing only those that meet specific rules, ensuring only authorized traffic can enter and exit a network.

Firewalls protect against unauthorized access, malware, and other security threats, helping to maintain the integrity and availability of a network.

An attack where attackers manipulate TCP packets to gain unauthorized access to a system or disrupt normal network operations.

The act of intercepting and examining network traffic as it passes through a network, like listening in on a conversation.

Manipulating people to gain access to information or systems. Like tricking someone into giving you their password.

Unique numbers that identify specific services on a computer. They act as communication endpoints.

TCP and UDP are protocols for communication on the internet. TCP is reliable and ordered, while UDP is faster but less reliable. Their use determines the port number.

Secure version of HTTP that uses encryption to protect data transmitted between a website and a user.

Monitoring for potentially malicious activity on a network, identifying suspicious patterns and anomalies.

A password attack that involves using a list of common or pre-compiled passwords to guess a user's password.

Verifying the identity of a user or device before granting access to network resources.

Restricting access to network resources based on user roles and permissions.

Measures taken to protect a network and its resources from unauthorized access, use, disclosure, disruption, modification, or destruction.

To safeguard sensitive information like trade secrets, medical records, and personal data while still allowing access to authorized users.

A type of attack where attackers manipulate TCP packets to gain unauthorized access to a system or disrupt normal network operations.

Port numbers identify specific services running on a computer, like web servers (HTTP) or email (SMTP).

An IP address is a unique numerical label assigned to each device on a network, like a postal address for a computer.

TCP (Transmission Control Protocol) is a reliable communication protocol that ensures data arrives in the correct order and without errors.

UDP (User Datagram Protocol) is a fast but less reliable communication protocol, often used for applications that don't require error-free delivery.

A DoS (Denial of Service) Attack floods a server or network with traffic, making it unavailable to legitimate users.